Progressed SUN

There is so little information that seems to be available on progressions; im quite interested in my progressed sun as it is now currently 3 degree's into Leo and almost exactly conjunct Venus.

Should i read up on Sun in Leo for an idea of the change in personality characteristics i can expect?

I understand i will still be Cancer at my core, but im intrigued on how much difference i can expect as the Sun is Leo's ruling planet.

I've noticed im more open to relationships, adventure and travel.

Thanks

You may have to buy a book. Is this something you can do, or are you limiting yourself to stuff on the internet?